Remember this image? I found it in the current ISO. It was found in the final game too I believe. What I don't believe is that these extra images were found with it. Check them out with the link below:

the sonic OVA was in there, but it was yanked.
That menu shows an old lineup (The lineup went through many revisions)
And finally Sonic CD was yanked because sega cd emulation at the time had JUST started, and they couldn't code or buy code in time.